Lamp-extinguisher.



R. STOKES, JR. & J. F. STOKES.

' LAMP EXTINGUISHER.

APPLICATION FILED 1730.18.1908.

921,633. v v Patented May 11, 1909.

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R. STOKES, JR. 8: J. F. STOKES.

LAMP BXTINGUISHER. APPLICATION FILED DEG.18,1908. 921,633, Patented May 11, 1909.

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RICHARD sroxns, m, or

PROVIDENCE, RHODE ISLAND, AND JAMES F. STOKES, OF MAPLEWOOD, MASSACHUSETTS LAMP-EXTINGUISHER.

Specification of Letters Patent.

Patented May 11, 1909.

Application filed December 18, 1908. Serial No. 468,188.

To all whom it may concern:

Be it known that we, RICHARD Sroxns,

Jr., citizen of the United States, residingat Providence, in the county of Providence and State of Rhode Island, and JAMEs F. STOKES, citizen of the United States, residing at Maplewood, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Lamp- Extinguishers, of which the following is a specification.

This invention is an improved construction of means to prevent explosion of oil lamps, the object being to provide a simple and self acting means to prevent explosion of oil lamps caused by upsetting or dropping of the lamp.

IVith this object in view the invention consists in constructing a rod of metal that shall pass down through the center of a center draft lamp from a point above the wick of the lamp to the bottom of the lamp. The upper end of the rod is provided with a disk of metal the size and shape of the top of the wick of the lamp. Said disk will encircle the perforated screen through which the air passes to the flame and is attached to the upper end of the rod by means of arms projecting horizontally from the top of the rod, said arms are connected with the inner edge of the disk. To allow the disk and upper end of rod to be connected two slots will be cut in the perforated screen opposite one another to permit the passage of the arms, and to allow the disk to be moved up and down by the action of the rod. The lower end of the rod will extend to the bottom of the lamp and will be provided with an expanding spring encircling the rod and resting on a nut or other projection attached to lower end of rod.

It will be seen that when an appliance of this description is attached to an oil lamp as above described and the lamp is standing on a table or other surface the rod will rest on the table or other surface and will raise the disk up above the wick and out of the way of the flame but that, upon the lamp being tipped even in a slight degree or upon its falling, the rod will be forced down by the expanding spring and will thus cause the disk at other end of rod to fall upon the wick and extinguish the flame. If the invention stopped here the lamp would be extinguished whenever it was moved from one place to another, to obviate this two metal clamps are constructed and fastened to the stem of the lamp upon opposite sides, the lower end of each clamp is screwed to the base of the lamp the upper end of clamp is left free to press against the lower part of the body of the lamp, at the middle portion of the convex side of each clamp an arm is constructed and made a part of the clamp. Each of said arms to be long enough to reach half way through the stem of the lamp. A hole will arms to penetrate. hen the clamps are grasped by the hand in order to move the lamp the arms are pressed through the holes in stem of lamp and caused to grasp the rod on the inside of lamp and prevent its falling and thus extinguishing the lamp. To form a point of resistance for the upper end of the expanding spring a bar is constructed across the inside of the base of the lamp.

In the drawings'l'orming part of this specification Figure 1, is a sectional view of a center draft oil lamp with this invention in all its parts in position. Fig. 2, is the lamp, con taining this improvement tipped up showing the end of the rod after the rod had fallen. The disk resting on the wick and the lamp extinguished. Fig. 3, is the im )roved means to prevent explosion of oil amp I showing rod, disk raised as when lamp is in i use, expanding spring, bar and nut, and the clamp pressed in so as to hold the rod up. Fig. 4, represents the clamp arms, and section of rod.

In the drawing like parts are marked by like characters.

(t represents base of lamp, 1) body of lamp, 0 inside of wick chamber 0 outside of same, d wick, c chimney holder, f rod, f arms, at top of rod, f lower end of rod, f annular groove forming a reduced portion in the rod into which the clamp arms are adapted to be forced, 1 disk, h inside of perforated screen, 7L1 perforated screen, 71/ top of burner, h flange to top of burner, i is bar point of resistance for upper end of spring, 1? lower and fixed part of clamp, i arm for holding rod up, i free end of clamp, i notches in the ends ol' the arms i screw, is expanding spring, I nut.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent is, i

1. In a device of the kind described, the combination with a lamp having a stem pro be made through the stem of the lamp for the.

vided with oppositely disposed openings, of a bar secured transversely in the base of said lamp, a rod slidably mounted in said bar rovided with an annular groove normally lield in horizontal alinement with the openings of the stem, oppositely disposed arms formed on the upper end of said rod, an ex tinguishing disk secured on said arm, a nut mounted on the lower end of said rod, a spring surrounding said rod between the nut and bar for drawing said rod downwardly, spring clamping members carried by said bar extending upwardly along side of the stem of the lamp, and arms provided with notched ends carried by said spring members working in the openings of the stem, adapted to be forced into the groove of the rod for holding said rod against the tension 01'' said spring.

2. In a lamp extinguisher, the combination with a lamp provided with a burner having a screen arranged above the same, said screen being provided with oppositely disposed slots, of a spring actuated rod slidably mounted in said lamp provided with arms at its upper end extending out through the slots of the screen, an extinguishing disk surrounding said screen connected to said arms, and spring members carrying arms for against the tension of the spring.

3. In a device of the kind described, the

combination with a lamp having oppositely disposed openings formed in its stem, of a bar secured transversely in the base of the lamp, a vertical rod slidably mounted in said bar having an annular groove, arms formed on the upper end of said rod carrying an extinguishing disk, a nut mounted on the lower end of said rod a coil spring surrounding said rod between said nut and bar, spring clamping members carried by the lamp extending upwardly along side of the stem, arms having notched ends carried by said members working in the openings of the stem adapted to be forced into the groove of the rod, when grasped by the hand.

In testimony whereof we have signed this specification in the presence of two subscribing witnesses.

RICHARD STOKES, JR.. JAMES F. STOKES. Witnesses:

WILLIAM C. BLiss, CHARLES H. KERNAN. 

